Framework developed for geomorphic mapping of Fern Ridge Lake, Oregon, 2023
Mackenzie K. Keith, Heather D. Bervid
2025, Data Report 1215
The construction and operation of large reservoirs in the Willamette River Basin, Oregon, influences important cultural, biological, and other natural or economic resources in affected river corridors. The present-day landforms and cover within the reservoirs have been shaped by a variety of processes, including the pre-dam valley setting and geomorphic...
Exploring the importance of metapopulation dynamics with population control strategies for invasive silver carp in the upper Mississippi River
Kassidy Frame, Gregory J. Sandland, Charles J. Labuzzetta, Grace L. Loppnow, Jessica C. Stanton, Yu-Chun Kao, Richard A. Erickson
2025, Journal of Wildlife Management (89)
Invasive bigheaded carps (Bighead Carp Hypophthalmichthys nobilis, Silver Carp Hypophthalmichthys molitrix, and their hybrids Hypophthalmichthys spp.) currently infest the Mississippi River Basin. Bigheaded carps can outcompete native species in invaded waters and can also transform the surrounding environment. Currently, resource managers seek to limit the population abundance of bigheaded carps and their range expansion...
Origin and evolution of mafic volcanism associated with 3 m.y. of andesite production at the Goat Rocks volcanic cluster, southern Washington Cascade Range
Kellie Taylor Wall, Anita L. Grunder, Joseph Biasi, Dominique Weis, Don Swanson, Mark E. Stelten
2025, Geological Society of America Bulletin
More than 3 m.y. of mafic volcanism near the Goat Rocks volcanic cluster in the southern Washington Cascade Range, USA, lends insight into the evolution of basalts and the subarc mantle at a long-lived, major arc volcanic locus. We contribute field observations, 40Ar/39Ar dates, paleomagnetic directions, and bulk rock and mineral...
An integrated sensor network and data driven approach to satellite remote sensing of dissolved organic matter
Dulcinea Marie Avouris, Erin L Hestir, Jacob Fleck, Jeffrey A. Hansen, Brian A. Bergamaschi
2025, Earth and Space Science (12)
Traditional remote sensing retrieval models for water quality have historically relied on limited, localized data sets due to the prohibitive costs of extensive field campaigns and logistical challenges of collecting match-up data with satellite overpasses. As a result, these models often lack generalizability across seasons, tides, and sites. Furthermore, small...
Impacts of lake elevation decline on spawning habitat of a critical, native forage species
Sarah Barnes, Robert Al-Chokhachy, Phaedra Budy
2025, Transactions of the American Fisheries Society (154) 640-656
ObjectiveLake elevation decline is a global phenomenon with pronounced effects in arid regions that changes the characteristics of nearshore habitat area available to lacustrine spawners, potentially impacting recruitment and whole-lake food web dynamics. Our objective was to understand the potential effects of lake elevation decline on spawning habitat for the...
Grammar to graph—An approach for semantic transformation of annotations to triples
Dalia E. Varanka, Emily Abbott
2025, Scientific Investigations Report 2025-5064
Data annotation is the process of labeling data to show the outcome that a related data model should predict. In this study, annotation data were transformed into semantic graph triples, mainly for use with the Resource Description Framework (RDF), a type of entity-relationship-attribute data model for graph databases. The transformation...
A scientific vision and roadmap for earthquake rupture forecast developments, a USGS perspective
Edward H. Field, Alexandra Elise Hatem, Bruce E. Shaw, Morgan T. Page, P. Martin Mai, Kevin Ross Milner, Andrea L. Llenos, Andrew J. Michael, Frederick Pollitz, Jessica Ann Thompson Jobe, Thomas E. Parsons, Olaf Zielke, David R. Shelly, Alice-Agnes Gabriel, Devin McPhillips, Richard W. Briggs, Elizabeth S. Cochran, Nico Luco, Mark D. Petersen, Peter M. Powers, Justin Rubinstein, Allison Shumway, Nicholas van der Elst, Yuehua Zeng, Christopher DuRoss, Jason M. Altekruse
2025, Bulletin of the Seismological Society of America (115) 2523-2552
We articulate a scientific vision and roadmap for the development of improved Earthquake Rupture Forecast models, which are one of the two main modeling components used in modern seismic hazard and risk analysis. One primary future objective is to provide fully time-dependent models that include both elastic rebound and...
Critical mineral inventory of select IOA-IOCG deposits, southwestern USA
Ryan D. Taylor, Corey J. Meighan, Albert H. Hofstra
2025, Conference Paper
Critical minerals are necessary for modern technology and strategic purposes. Their increasing importance requires finding new and nontraditional resources. Samples of ore, altered, and unaltered host rock were collected from 26 iron mines and prospects in California, Nevada, and Utah to assess the potential of these deposits to host economic...
Melt generation sources and conditions in the wake of a migrating slab window: Geochemistry and petrology of the million-year history of primitive volcanism at Clear Lake volcanic field, California
Dawnika L. Blatter, Seth D. Burgess
2025, Journal of Petrology (66)
Clear Lake volcanic field (CLVF) is the northernmost and youngest (~2.2 Ma to 8 ka) of the volcanic centers distributed along the San Andreas transform fault in western California. The initial phase of CLVF volcanism (interval one) occurred between ~2.2 and 1.3 Ma and extends ~35 km southeast of Clear Lake, forming a semi-continuous...
A spatiotemporal deep learning approach for predicting daily air-water temperature signal coupling and identification of key watershed physical parameters in a montane watershed
Mohammad Reza M. Behbahani, David M. Rey, Martin A. Briggs, Amvrossios Bagtzoglou
2025, Journal of Hydrology (663)
Seasonal shifts from runoff to groundwater dominance influence daily headwater stream temperatures, especially where local groundwater input is strong. This input buffers temperature during hot periods, supporting cold-water habitats. Recent studies use air–water temperature signal metrics to identify zones of...
Estimated average annualized tsunami losses for the United States
Anne Sheehan, Casey Zuzak, Nathan J. Wood, Doug Bausch, Cadie Goulette Yeager, Alice McDougall
2025, Report
Tsunami hazards are substantial threats to coastal communities across the United States (U.S.) and its territories. U.S. states and territories collaborate through the National Tsunami Hazard Mitigation Program (NTHMP) to develop their own tsunami-hazard information for outreach and evacuation planning. An effort to curate this tsunami-hazard information to support comprehensive...
Fluvial sediment dynamics in the Shoshone River and tributaries around Willwood Dam, Park County, Wyoming
Jason S. Alexander, Haylie Brown, Cheryl A. Eddy-Miller, Jason Burckhardt, Laura Burckhardt, Christopher A. Ellison, Carmen McIntyre, Travis Moger, Lindsay Patterson, Chace Tavelli, David Waterstreet, Mahonri Williams
2025, Scientific Investigations Report 2025-5077
Sedimentation affects many of the aging reservoirs in the United States. Dams and water diversions from rivers have been central elements of infrastructure supporting agricultural irrigation in the arid and semiarid regions of the Western United States for more than a century. The Willwood Irrigation District diversion dam (hereafter referred...
Projecting stream water quality using Weighted Regression on Time, Discharge, and Season (WRTDS): An example with drought conditions in the Delaware River Basin
Christopher Green, Robert M. Hirsch, Hedeff Essaid, Ward E. Sanford
2025, Science of the Total Environment (999)
Future water availability depends on understanding the responses of constituent concentrations to hydrologic change. Projecting future water quality remains a methodological challenge, particularly when using discrete observations with limited temporal resolution. This study introduces Weighted Regression on Time, Discharge, and Season for Projection (WRTDS-P), a novel, computationally efficient method that...
Regional high-frequency monitoring revealed chloride concentrations in exceedance of ecological benchmarks in urban streams across the Delaware River Basin, USA
Rosemary M. Fanelli, Michelle Morency, Brandon J. Fleming, Joel Moore, Deanna Hardesty, Megan E. Shoda
2025, Environmental Monitoring and Assessment
Rising chloride concentrations pose critical risks to freshwater stream ecosystems in temperate regions like the Delaware River Basin (DRB), USA, where winter deicer applications (i.e., road salt) are common. Increasing chloride concentrations have been documented in the region, but the extent to which chloride exceeds regulatory benchmarks remains unclear because...
Dispersal and survival of sea lamprey in Lake Erie and connected waterways
Sean Alois Lewandoski, Christopher Holbrook
2025, Canadian Journal of Fisheries and Aquatic Sciences
Invasive sea lamprey inhabiting the North American Laurentian Great Lakes are the target of the world’s longest running vertebrate invasive species control program. However, metapopulation dynamics comprising survival and dispersal during the sea lampreys’ lake-resident life stages are poorly understood. We applied acoustic telemetry and continuous-time multistate capture-recapture modeling to...
Breaking down Palila decline: Assessing the role of drought and vegetation health in the population loss of an endangered Hawaiian honeycreeper
Erica M. Gallerani, Richard J. Camp, Paul C. Banko, Austin Madson, Chunyu Dong, Lucas Fortini, Zhimin Ma, Thomas W. Gillespie
2025, Global Ecology and Conservation (62)
The Palila (Loxioides bailleui), the last member of the once speciose finch-billed Hawaiian honeycreeper clade (Drepanidinae) in the main Hawaiian Islands, faces critical conservation challenges as an endangered species. Understanding the drivers of its decline is essential for effective management. We used additive decomposition models to examine temporal trends in...
Streamflow extents and hydraulic characteristics of Meadow Valley Wash at Stuart Ranch, near Rox, Nevada
Laura A. Dye, Christopher M. Morris, Hampton K. Childres
2025, Scientific Investigations Report 2025-5069
The former Stuart Ranch, now managed by the Bureau of Land Management, is transected by Meadow Valley Wash, where 4,600 feet of perennial stream and adjacent riparian vegetation provide critical habitat for several wildlife and aquatic species protected under the Endangered Species Act. The stream has been altered by prior...
High-resolution multi-pollutant mapping in Denver, Colorado
Priyanka deSouza, Benjamin Crawford, John L. Durant, Neelakshi Hudda, Peter Christian Ibsen, Christian L'Orange, Jose Jimenez, Brady Graeber, Brendan Cicione, Ruth Mekonnen, Saadhana Purushothama, Ralph Kahn, Patrick L. Kinney, John Volckens
2025, Atmospheric Environment X (27)
Characterizing traffic-related air pollutants (TRAPs), which significantly impact health, and greenhouse gases (GHGs) can be challenging in urban environments. Mobile monitoring has the potential to capture the spatial distribution of these pollutants. We present results from a campaign using the Denver Mobile Monitoring Laboratory (DMML) in the summer of 2023...
Favorability mapping for hydrothermal power resource assessments of the Great Basin, USA
Stanley Paul Mordensky, Erick R. Burns, John Lipor, Jacob DeAngelo
2025, Geothermics (133)
The U.S. Geological Survey (USGS) is updating the 2008 assessment of conventional hydrothermal resources for the Great Basin in the western United States. As part of this work, the workflow for hydrothermal resource favorability maps is being modified to integrate modern data-driven machine learning (ML) methods. Improvements include: [1] using...
The role of fire on Earth
Juli G. Pausas, Jon Keeley, William J. Bond
2025, BioScience
Fire is a defining feature of our biosphere, having appeared when the first plants colonized the land, and it continues to occur across the planet at different frequencies and intensities. Fire has been and remains as an evolutionary force in many plant and animal lineages and contributes to explaining the...
Using periodic matrix models to simulate the effectiveness of alternative reintroduction strategies for lizards on a seasonal tropical island
Jonathan P. Rose, Brian Halstead, Melia G. Nafus
2025, Animal Conservation
Conservation translocations and reintroductions are widely used to improve conservation outcomes for declining species. Reintroductions are unlikely to be successful if the threats that led to the extirpation of the focal species, such as non-native predators, have not been ameliorated. The non-native brown treesnake (Boiga irregularis) was introduced to Guam...
Revised marine bird collision and displacement vulnerability index for U.S. Pacific Outer Continental Shelf offshore wind energy development
Emma C. Kelsey, Jonathan J. Felis, David M. Pereksta, Josh Adams
2025, Data Report 1214
The installation of offshore wind energy infrastructure (OWEI) at sea may affect marine birds by increasing the risk of mortality from collision with OWEI (Collision Vulnerability) and causing disturbance and displacement from important habitats (Displacement Vulnerability). In 2017, we published the first comprehensive database quantifying marine bird Collision Vulnerability and...
Collaborative drought science planning in the Colorado River Basin
Patrick J. Anderson, Jeanne E. Godaire, Daniel K. Jones, William J. Andrews, Alicia A. Torregrosa, Meghan T. Bell, JoAnn M. Holloway, Molly A. Blakowski, Joseph A. Hevesi, Sharon L. Qi
2025, Open-File Report 2025-1041
The U.S. Geological Survey (USGS) is using collaborative, interdisciplinary planning to develop data and tools needed to optimize the management of water resources and land use by resource management agencies during an ongoing, multidecadal drought in the Colorado River Basin. The USGS Actionable and Strategic Integrated Science and Technology team...
Gravity and magnetic surveys of the Skaergaard intrusion, East Greenland
Mark E. Gettings
2025, Open-File Report 2025-1030
Aeromagnetic and gravity surveys of the Skaergaard intrusion in East Greenland were carried out in July–August 1971 as part of a grant to the University of Oregon Center for Volcanology to refine the models of crystallization and differentiation of the intrusion, specifically to test whether the intrusion is underlain by...
The story of the Penobscot River Ecology Mural: A 10-step process for scientists to create public art
Jillian Fedarick, Christina Amy Murphy, Sydne Record, Allison H. Roy, Annette Dodd, Susan L. Smith
2025, Fisheries
Rivers are home to a wide variety of biota, including fishes, amphibians, reptiles, birds, freshwater mussels, aquatic insects, and microscopic organisms that fill unique niches to support broader ecosystem functions. While the general public may be aware of recreationally relevant biological life (e.g., fishes and insects to model flyfishing flies...
